<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Document</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="root">
        <input type="text" v-model.number="num1">+<input type="text" v-model.number="num">
        <button @click="equalTo">结果</button>
        <p>{{result}}</p>
    </div>
    <script>
        Vue.config.productionTip = false
        new Vue({
            el:'#root',
            data:{
                num1:'',
                num:'',
                result:'',
            },
            methods: {
                equalTo(){
                console.log(123);
                this.result=this.num1+this.num;
            }
            },
         
        })
    </script>
</body>
</html>